Home / 6,759.10-10,138.65-2,142.10

Finding the Fourth Proportional to 6,759.10, 10,138.65 and 2,142.10

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Solution

The fourth proportional to 6,759.10, 10,138.65 and 2,142.10 is: 3,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.10 : 10,138.65 = 2,142.10 : x
  2. Step 2: Convert to fraction form
    6,759.10/10,138.65 = 2,142.10/x
  3. Step 3: Cross multiply
    6,759.10x = 10,138.65 × 2,142.10
  4. Step 4: Simplify right side
    6,759.10x = 21,718,002.17
  5. Step 5: Solve for x
    x = 21,718,002.17/6,759.10
  6. Step 6: Final answer
    x = 3,213.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.